code: def setup(self):
      N = 10**4
      self.iterables = [
          Index([f"i-{i}" for i in range(N)], dtype=object),
          range(20),
      ]
  
imports: import numpy
  from pandas import DatetimeIndex, Index, MultiIndex, Series, Timestamp, date_range
  from .pandas_vb_common import setup
label_desc: Use image node_id 1 for calling the MultiIndexConstructor obj's underlying member method code with example usage: obj.setup() without return types